Improvement in wood-bending machines



UNITED STATES PATENT .OEETcE d. P. SOHMUOKER, OF ASHLAND, OHIO.

IMPROVEMENT IN WOOD-BENDING MACHINES.

Specification forming part of Letters Patent No. 58,488, dated October 2, 1856.

To all whom it may concern Be it known that I, J. P. SOHMUOKER., of Ashland, in the county of Ashland and State of Ohio, have invented certain new and useful Improvements in Wood-Bending Machines; and I do hereby declare that the following is a full and complete description of the construction and operation of the same, reference being had to the accompanying drawings, making part of this specification, in which- Figure 1 is a side View. Fig. 2 is a top view. Fig. 3 is anend view. Figs. 4, 5, 6, and 7 represent detached parts.

Like letters refer to like parts in the several i views.

The frame of the machine consists ot' the ways A A, legs B B, and parts O O. The ways are in construction similar to those ot' a turning-lathe. The parts O are secured to the ways by bolts near the middle, and extend above the ways a distance about equal to that from the bottom of the legs to the top of the wa s.

A/cross the top of the parts O, l secure the beam D, through which the screw E passes, and which forms a nut for the same. The. in side faces or" the parts O are channeled, as indicated by the cross-section in Fig. 6, and which form a guide for the pressureroller F, as shown in Fig. 6.

G represents a traverse-table, which is fitted to and moves upon .the ways A A. The table Gr is faced upon the upper side by transverse plank G, for the purpose ot' strengtheningthe same.

H represents a traverse-screw, which extends the whole length ot the machine and between the ways' A A. This screw has its bearings at each end vin the cr0ss-pieces I that separate the ways.

A nut, J, shown in dotted lines in Fig. 1, is attached to the under side of the table Gr, through which the screw H passes, and by which means the table is moved 1n either direction, dependent upon the direction of rotation ot' the screw. The screw is rotated either by means of a crank or pulley. At each end of the table G is attached a clainp, K, which is operated by a thumb-screw, L. The inner end of the clamp rises from the table at right angles tothe face of the table, and forms a support for the end of the timber to be bent.

M represents a plate of thin metal, upon which the piece to be bentis placed,two views of which are shown in Fig. 4. One end of this is turned around an iron pin, as shown at N, for the purpose of securing the plate tothe former, by means of the gripe O, shown detached in Fig. 5.

P represents the former, which is shown detached in Fig. 7. 1t is made ot iron, and has sufficient strength to hold the bent piece in place while it dries, after being steamed and bent. Q represents an open gripe that is put on to hold the bent piece to the `former, so that it can be removed from the machine. R represents the pattern under process of being bent. Upon each side of this are placed guideblocks, seen at S, which tit in between the parts O and the pattern It, and these are provided with set-screws s, by means of which they are adjusted to the exact width of the pattern to be bent. They can be removed at pleasure.

The operation of the machine is as follows: The pattern R, being ot' the desired form, is steamed as usual. One end of the pattern R is placed in contact with the clamp K, as shown in Fig. l, the plate M being beneath `it and extending under the clamp. The tableis now adjusted until the end of the pattern comes under the roller F.

4 The clamp O secures the plate M, pattern R, and former P together. by passing the plate M through the slot c, and the end of the former through the slot a', the end of the pattern being pressed against the end ot the clamp between the slots cc', and by turning the screw E the roller F is pressed down upon the upper side of the former, thus holding all firmly upon the table G G.

Now, by turning the screw H, the table is moved in the direction ot1 the arrow, and the timber is bent to the desired forni, and so held until clamped at the opposite end by the gripe Q, when the plate, pattern, and former can be removed. By having a clamp, K, at both ends of the table another pattern can now be laid for bending without the necessity of running back the table.

1. The table G, clamps K, plate M, and former P, when constructed and operating as and for tlie'purpose specified.

2. In combination with the table Gr, plate M, and former P, the guide-blocks s, constructed as specified.

J. P. SCHMUCKER.A

Witnesses:

W. H. BURRIDGE, I. HOLMES. 

